Car Ignition Coil Tester

KM20 Multisystem Automotive Ignition System Analyzer: Diagnostic Power in Your Hands

Move your ignition system diagnostic to a new level of precision and efficiency with Coil Tester tool KM20, The Multisystem Ignition Analyzer. Designed specifically for automotive and Car repair shop, this cutting-edge car ignition coil tester offers an indispensable tool for accurately identifying and analyzing ignition system performance. Thanks to its advanced technology, you can now measure the speed of each cylinder in a car engine, as well as measure the ignition voltage in the high-voltage ignition coil and the fuel injection time in each cylinder.

Key Features:

• Comprehensive Measurement:
  • The device allows you to measure engine RPM, spark voltage, and spark burn time, Automotive coil testing, giving you a complete picture of ignition system performance.
• Advanced Technology:
  • The device utilizes precise control technology that ensures accurate measurements and ease of use.
• Practical Design:
  • The device features an induction-based design, eliminating the need to dismantle any engine parts, thus saving time and effort.
• Dynamic Display:
  • The device displays data dynamically, allowing you to monitor performance changes in real time.
• Range Identification:
  • The device displays the maximum and minimum readings, helping you quickly identify potential problems.
• Ease of Use:
  • The device does not require ground wire connections, making it easy to use even for beginners.
• KM20 :
  • The ideal choice for repair shops striving for excellence in automotive diagnostics.

Important Safety Information

• Operating Environment:
  • This device is intended for indoor use only, within temperatures ranging from 0°C to 40°C, and altitudes up to 2000 meters.
• Safe Operation:
  • Always follow the safety and operating instructions provided in this manual. Failure to do so may compromise the device’s safety features.
• Pre-Use Inspection:
  • Do not use this device, the capacitive pickup, or the flexible probe if they appear damaged or if you suspect any malfunction.
• Avoiding Hazards:
  • Keep the device, capacitive pickup, and flexible probe away from moving parts (e.g., fans, belts) and hot objects (e.g., exhaust pipe, muffler, catalytic converter) during use to prevent personal injury or damage.
• Electrical Safety:
  • Do not connect or apply more than 42V DC or any AC current to the capacitive pickup or flexible probe. Exercise caution when working on circuits exceeding 60V DC or 25V AC to avoid electrical shock.
• Battery Safety:
  • Do not operate the device with the battery cover removed.
• Input Limits:
  • Never exceed the specified input limits to prevent electrical shock or damage to the device.

Technical Specifications

• Display:
  • 128 x 64 digit LCD screen
• Refresh Rate:
  • Update 3 times per second (LCD)
• Ignition System Compatibility:
  • Coil-on-plug (COP), coil-near-plug (CNP), DIS, conventional, and magneto coils.
• Engine Cycles:
  • Work on 2-cycle, 4-cycle, and DIS (distributor less ignition system)
• Power:
  • Alkaline 9V battery
• Auto Power Off:
  • After 3 minutes of inactivity
• Battery Life:
  • Approximately 20 working hours (with alkaline battery)
• Probe Length:
  • Long 35 cm (including capacitive pickup)
• Dimensions:
  • Compact design with165 x 100 x 32 mm (without antenna)
• Weight:
  • Approximately 0.363 kg (including battery)
• Included Accessories:
  • Padded hard carrying case, user manual, rubber holster, 1x 9V alkaline battery.

Note: Failure to adhere to these precautions or exceeding the limitations specified above may result in personal injury or permanent damage to the device or the vehicle being tested.

Electrical Specifications

The specifications below are based on a standard 23°C environment. Slight variations may occur between different devices and temperatures. To prevent personal injury or damage to the instrument, do not exceed the specified maximum input voltage.

• Function Measurement Range Accuracy/Repetitively Input Characteristics
• RPM 200 to 19999 RPM (2 & 4 cycles, DIS) 0.5% ± 1 LSD Input Impedance: 100KΩ + 1.5 nF (Min.)<br>Input Protection: ±42 VDC Max.
• Spark KV 0 to 50 Kv 3% ± 1 LSD
• Spark Burn Time 0 to 10 ms ±0.1ms

Instrument Description

Fig. 1 – Instrument Description

1. Capacitive Pickup
2. Flexible Probe
3. Protective Rubber Holster
4. LCD Display
5. Power/Reset Button
6. F2 Button
7. Ignition System Button
8. F1/Calibrate Button
9. Engine Cycles Button

LCD Display Description 

Fig. 2 – LCD Display

• Low Battery Indicator:
  • This indicator alerts you when the battery voltage is below the recommended minimum, signaling the need for a replacement.

• Number of Cycles:

• Displays the selected number of engine cycles (strokes): 2, 4, or DIS.

• Ignition System:

  • In the Car Ignition Tester Displays you can chose ignition system measurement mode:

    • (SPW) for Spark Plug Wire, (COP) for Coil on Plug and Coil near Plug.

• Spark Detected:

  • A flashing high voltage symbol indicates spark detection in the ignition system tester.

• Secondary Display A:

  • Pressing (F2) shows the maximum reading, RPM, or spark K-Volt (depending on settings), along with the selected measurement units and/or functions.

• Secondary Display B:

  • Pressing (F2) displays the minimum reading, RPM, or spark burn time, in accordance with the chosen settings and units.

• Main Display:

  • The (F1/Calibrate) button toggles the main display between engine RPM, spark K-Volt, or spark burn time.

• Functions and Measurement Units:

  • Shows the units and/or functions for the main display. The following table illustrates the available options:

    • Display Function Measurement Units
    • RPM Tachometer RPM (Revolutions per minute)
    • Burn Time mS Spark plug burn time mS (Milliseconds)
    • Spark KVolt Spark plug peak voltage KVolt (1000 x Volt)

Notes:

If the battery is low but still allows operation, the indicator will remain displayed until a new battery is installed.

If the device powers off immediately after turning on, the battery is below the absolute minimum and must be replaced to prevent malfunction.

KM20 Multisystem Automotive Ignition Coil Analyzer: Comprehensive Engine Diagnostics with Compu-car 2-Years Warranty & Tech Support

The KM20 Multisystem Ignition Analyzer is a powerful tool designed to pinpoint issues in various engine ignition systems. Backed by Compu-car’s 2-year warranty and expert technical support, you can diagnose with confidence.

Main display screen and secondary operations

Fig.3- Examples of Main and Secondary Functions combinations

Intuitive Button Operation for Efficient Analysis

• Power ON/OFF & Reset:
  • Press & hold (1 sec): Turn the analyzer ON.
  • Press & hold (3 sec): Turn the analyzer OFF.
  • Quick press: Reset maximum/minimum and capture values.

Note: KM20 automatically powers off after 3 minutes of inactivity to conserve battery life.

• Ignition System:
  • Choose the mode that matches your engine’s ignition system:
    • SPW (Spark Plug Wire): For systems with high-voltage spark plug wires (conventional, magneto, distributor less, waste spark).
    • COP (Coil on Plug): For systems with coils mounted near or on the spark plugs.
• Engine Cycles:
  • Select the number of cycles for your engine:
    • SPW mode: 2 cycles, 4 cycles, or DIS (distributor less/waste spark).
    • COP mode: 2 cycles or 4 cycles.
• F1 / Calibrate:
  • Quick press: Cycle through displayed measurements (RPM, spark burn time, spark peak voltage).
  • Press & hold (3 sec): Enter COP module type for automatic calibration (COP mode only).
• F2:
  • Quick press: Toggle secondary displays (between two additional measurements or max/min readings).
  • Press & hold (3 sec): Turn the display backlight on or off.

Why Choose KM20 Car Ignition Analyzer?

• Versatile: Handles a wide range of ignition systems.
• User-friendly: Easy-to-understand buttons and clear display.
• Reliable: Backed by Compu-car’s 2-year warranty and technical support.

Get in touch with Compu-car today to learn more about how the KM20 Car Ignition Diagnostic tool can revolutionize your engine diagnostics.

For more info about the KM20, Contact Compu-Car team by WhatsApp from here, or call us on same number

Spark Plug Wire Ignition Systems: Step-by-Step Diagnostics with the KM20

Fig. 4 – Capacitive pick-up on spark plug wire

1. Power On: Turn on your KM20 Multisystem Ignition Analyzer.
2. Select SPW Mode: Confirm or switch to SPW (Spark Plug Wire) mode using the Ignition System button.
3. Set Engine Cycles: Press the Engine Cycles button to match the number of cycles of the engine you’re testing (2, 4, or DIS).
4. Choose Measurement: Select the primary value you want to see on the main display: RPM, spark burn time, or spark KVolt.
5. Configure Secondary Display: Choose to show either the maximum/minimum readings of your main measurement or the two complementary measurements.
6. Measure: Place the capacitive pick-up over a spark plug wire and observe the readings. (See Fig. 4)